CN203643393U - Indoor air quality detection sensor - Google Patents
Indoor air quality detection sensor Download PDFInfo
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- CN203643393U CN203643393U CN201320730128.4U CN201320730128U CN203643393U CN 203643393 U CN203643393 U CN 203643393U CN 201320730128 U CN201320730128 U CN 201320730128U CN 203643393 U CN203643393 U CN 203643393U
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- electrode
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- indoor air
- air quality
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Abstract
The utility model relates to an indoor air quality detection sensor. The indoor air quality detection sensor comprises a bottom cover, a counter electrode, a shell, a cap, a seal ring, an air inlet window, press plates, a rear air hole, a working electrode, a gas-permeable membrane, a reference electrode and an electrolytic tank, wherein the electrolytic tank is fixed in an inner hole of the shell in a sleeved manner; the counter electrode is mounted above the left side of the electrolytic tank, the reference electrode is mounted below the left side of the electrolytic tank, and the working electrode is arranged at the right side of the electrolytic tank; the rear air hole is formed between the counter electrode and the reference electrode; one press plate presses the working electrode, and the other press plate presses the counter electrode and the reference electrode; the gas-permeable membrane is mounted between the press plates and the electrodes; the seal ring presses the press plates; the bottom cover is arranged at the leftmost end of the shell, the cap is arranged at the rightmost end of the shell, and the air inlet window is arranged in the middle of the cap. The indoor air quality detection sensor has the characteristics of simple structure, easiness in realization and capability in rapid and accurate measurement of indoor air quality.
Description
Technical field
The utility model relates to a kind of sensor field, and concrete is a kind of IAQ (indoor air quality) detecting sensor.
Background technology
Along with developing rapidly of China's economy, the raising of living standards of the people, people are to environmental problem and health problem pay attention to day by day, and indoor air quality (IAQ) situation receives increasing concern.People's 2/3rds the time of having is in life spent in room.Therefore, IAQ (indoor air quality) concerns people's life security and quality.
Piezoelectric type gas sensor is subject to the impact of hydrone and crystal vibration frequency is drifted about, and estimates substantially without practicality.The aspect defects such as semi-conductor type gas sensor must at high temperature work, the poor selectivity to gas or smell, component parameters are disperseed, stability is undesirable, power is high.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the purpose of this utility model is to provide a kind of IAQ (indoor air quality) detecting sensor, has simple in structurely, is easy to realize, and can measure quickly and accurately the feature of indoor air quality.
In order to achieve the above object, the technical scheme that the utility model is taked is:
A kind of IAQ (indoor air quality) detecting sensor, comprise bottom 1, to electrode 2, shell 3, cap 4, O-ring seal 5, air inlet window 6, pressing plate 7, posterior spiracle 8, working electrode 9, ventilated membrane 10, contrast electrode 11 and electrolytic cell 12, described electrolytic cell 12 fixed covers are in shell 3 endoporus, be equipped with electrode 2 on electrolytic cell 12 upper left sides, contrast electrode 11 is equipped with in lower left, the right is working electrode 9, to having a posterior spiracle 8 between electrode 2 and contrast electrode 11, two 7 one of block pressur plates are pressed on working electrode 9, another piece is pressed on electrode 2 and contrast electrode 11, ventilated membrane 10 is housed between pressing plate 7 and electrode, O-ring seal 5 is pressed on pressing plate 7, shell 3 high order ends are provided with bottom 1, shell 3 low order end covers have cap 4, in the middle of cap 4, there is an air inlet window 6.
Described is all immersed in liquid electrolyte electrode 2, contrast electrode 11 and working electrode 9, and integral sealing is in the plastic casing of an anti-chemical corrosion, and the gas-permeable film that object gas is close to by working electrode spreads to sensor internal.
Described shell 3 is plastics, and anti-chemical corrosion.
Principle of work of the present utility model is:
Tested gas is diffused into working electrode surface by air admission hole, is oxidized or reduction reaction between at working electrode, electrolytic solution, to electrode.The character of its reaction is according to the thermodynamics current potential of working electrode and the electrochemical properties of analyzed gas and determine.Sensor is participated in reaction in oxidation reaction electron stream in electrochemical reaction goes out working electrode; In reduction reaction, in electrochemical reaction, participate in the electron stream of reaction to working electrode.Flow out and flow to the electric current of working electrode and the concentration value of analyzed gas is directly proportional.
The beneficial effects of the utility model are:
The utility model design has simple in structure, is easy to realize, and can measure quickly and accurately the feature of indoor air quality.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Referring to accompanying drawing, the utility model is a kind of IAQ (indoor air quality) detecting sensor, comprise bottom 1, to electrode 2, shell 3, cap 4, O-ring seal 5, air inlet window 6, pressing plate 7, posterior spiracle 8, working electrode 9, ventilated membrane 10, contrast electrode 11 and electrolytic cell 12, described electrolytic cell 12 fixed covers are in shell 3 endoporus, be equipped with electrode 2 on electrolytic cell 12 upper left sides, contrast electrode 11 is equipped with in lower left, the right is working electrode 9, to having a posterior spiracle 8 between electrode 2 and contrast electrode 11, two 7 one of block pressur plates are pressed on working electrode 9, another piece is pressed on electrode 2 and contrast electrode 11, ventilated membrane 10 is housed between pressing plate 7 and electrode, O-ring seal 5 is pressed on pressing plate 7, shell 3 high order ends are provided with bottom 1, shell 3 low order end covers have cap 4, in the middle of cap 4, there is an air inlet window 6.
Described is all immersed in liquid electrolyte electrode 2, contrast electrode 11 and working electrode 9, and integral sealing is in the plastic casing of an anti-chemical corrosion, and the gas-permeable film that object gas is close to by working electrode spreads to sensor internal.
Described shell 3 is plastics, and anti-chemical corrosion.
Tested gas is diffused into working electrode surface by air admission hole, is oxidized or reduction reaction between at working electrode, electrolytic solution, to electrode.The character of its reaction is according to the thermodynamics current potential of working electrode and the electrochemical properties of analyzed gas and determine.Sensor is participated in reaction in oxidation reaction electron stream in electrochemical reaction goes out working electrode; In reduction reaction, in electrochemical reaction, participate in the electron stream of reaction to working electrode.Flow out and flow to the electric current of working electrode and the concentration value of analyzed gas is directly proportional.
Do not depart from design of the present utility model and scope and can make many other changes and remodeling.Should be appreciated that the utility model is not limited to specific embodiment, scope of the present utility model is defined by the following claims.
Claims (3)
1. an IAQ (indoor air quality) detecting sensor, it is characterized in that: comprise bottom (1), to electrode (2), shell (3), cap (4), O-ring seal (5), air inlet window (6), pressing plate (7), posterior spiracle (8), working electrode (9), ventilated membrane (10), contrast electrode (11) and electrolytic cell (12), described electrolytic cell (12) fixed cover is in shell (3) endoporus, be equipped with electrode (2) on electrolytic cell (12) upper left side, contrast electrode (11) is equipped with in lower left, the right is working electrode (9), to having a posterior spiracle (8) between electrode (2) and contrast electrode (11), two (7) one of block pressur plates are pressed on working electrode (9), another piece is pressed on electrode (2) and contrast electrode (11), ventilated membrane (10) is housed between pressing plate (7) and electrode, O-ring seal (5) is pressed on pressing plate (7), shell (3) high order end is provided with bottom (1), shell (3) low order end cover has cap (4), in the middle of cap (4), there is an air inlet window (6).
2. a kind of IAQ (indoor air quality) detecting sensor according to claim 1, it is characterized in that: described is all immersed in liquid electrolyte electrode (2), contrast electrode (11) and working electrode (9), integral sealing is in the plastic casing of an anti-chemical corrosion, and the gas-permeable film that object gas is close to by working electrode spreads to sensor internal.
3. a kind of IAQ (indoor air quality) detecting sensor according to claim 1, is characterized in that: described shell (3) is plastics, and anti-chemical corrosion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320730128.4U CN203643393U (en) | 2013-11-16 | 2013-11-16 | Indoor air quality detection sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320730128.4U CN203643393U (en) | 2013-11-16 | 2013-11-16 | Indoor air quality detection sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203643393U true CN203643393U (en) | 2014-06-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320730128.4U Expired - Fee Related CN203643393U (en) | 2013-11-16 | 2013-11-16 | Indoor air quality detection sensor |
Country Status (1)
| Country | Link |
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| CN (1) | CN203643393U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104198566A (en) * | 2014-09-23 | 2014-12-10 | 北海和思科技有限公司 | System for monitoring indoor air quality with plant |
| CN105486736A (en) * | 2015-10-15 | 2016-04-13 | 常州市鹰皇冠进出口有限公司 | Diesel-engine tail-gas quality detection sensor |
| CN109166283A (en) * | 2018-10-18 | 2019-01-08 | 南安凯杏工业产品设计有限公司 | A kind of vehicle-mounted carbonic oxide alarm dial plate based on fixed electric potential electroanalysis principle |
-
2013
- 2013-11-16 CN CN201320730128.4U patent/CN203643393U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104198566A (en) * | 2014-09-23 | 2014-12-10 | 北海和思科技有限公司 | System for monitoring indoor air quality with plant |
| CN105486736A (en) * | 2015-10-15 | 2016-04-13 | 常州市鹰皇冠进出口有限公司 | Diesel-engine tail-gas quality detection sensor |
| CN109166283A (en) * | 2018-10-18 | 2019-01-08 | 南安凯杏工业产品设计有限公司 | A kind of vehicle-mounted carbonic oxide alarm dial plate based on fixed electric potential electroanalysis principle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140611 Termination date: 20141116 |
|
| EXPY | Termination of patent right or utility model |